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Blue spinel
Blue spinel

Legrandite
Legrandite



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Blue spinel
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Legrandite

Blue spinel and Legrandite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
-9999
MgAl2O4
 
Brittle
-
-
3.98-4.04
Conchoidal
Imperfect, poor one {100}
4.5-5
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Blue spinel and Legrandite Chemical Formula

While comparing Blue spinel and Legrandite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Blue spinel and Legrandite chemical formula.

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Blue spinel and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue spinel and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue spinel Vs Legrandite during the identification of gemstone. Specific gravity of Blue spinel is whereas that of Legrandite is .